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Crawdad Grab
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In this outdoor, freshwater activity, learners explore the behavior and food preferences of crawdads (or crabs) by "fishing" for them with various baits.

Chew that Gum
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In this quick activity (page 1 of PDF under SciGirls Activity: Exercise and Memory), learners will investigate what happens to bubble gum when it is chewed for 5-10 minutes.

A Recipe for Air
Learners use M&Ms® (or any other multi-color, equally-sized small candy or pieces) to create a pie graph that expresses the composition of air.

Plant Power
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In this chemistry challenge, learners identify which plants have the enzyme "catalase" that breaks hydrogen peroxide into water and oxygen.

An Apple as Planet Earth
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In this environmental education demonstration (page 6 of the PDF), learners will see a tangible representation of the scarcity of soil resources on earth.
Enhanced Water Taste Test
Learners conduct a "blind" taste-test of several types of enhanced or fitness water drinking water that has commercially added substances like vitamins, sugars, or herbs.

Candy Dish Natural Selection
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In this yummy biology activity (page 3 of the PDF), learners participate in a demonstration of natural selection.

Making a Battery from a Potato
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In this electrochemistry activity, young learners and adult helpers create a battery from a potato to run a clock.

Inside DNA
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In this activity (on pages 34-39), learners make a fairly detailed model of DNA using licorice and gumdrops.

Testing for Life's Molecules
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In this activity, learners conduct tests for proteins, glucose, and starch.
Breakfast Sweets
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In this math activity, learners guess which cereals contain the most sugar. Learners use the nutrition labels on the cereal boxes to find the cereal with the least amount of sugar.

Protect That BRAIN!: Mr. Egghead
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This activity demonstrates the importance of wearing a helmet to protect the brain. An egg is used to symbolize a head with the shell as the skull and the inside of the egg as the brain.

Invisible Ink
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In this simple chemistry activity (page 1 of PDF under SciGirls Activity: Colorblind Dogs) about acids and bases, learners will mix a baking soda and water solution and use it to paint a message on a

Exponential Models: Rhinos and M&M’s ®
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In this math lesson, learners model exponential decay and exponential growth using M&M's, paper folding, and African rhino population data.

Natural Selection of Antibiotic Resistant Bacteria
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In this activity (p.3-4 of PDF), learners learn about disease transmission and antibiotic resistance.

Plenty on the Plains
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In this activity, learners compare the ways of life of Plains Native Americans who hunted and moved frequently to follow the buffalo herds, and Native Americans who farmed and lived in more permanent

Making Connections: What You Can Do To Help Stop Global Climate Change
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In this cooperative learning activity, learners visit ten stations and are challenged to think critically about various conservation questions and issues.
Special Snack: Budgeting for Health
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In this activity, learners will plan a snack within a budget. With a $20 limit (theoretical) to spend on snack for everyone, learners look over grocery store circulars and make their shopping lists.

Mold Terrarium: What Grows on Leftover Food?
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This activity shows you how to make a mold terrarium using a jar and leftover food.

Make a "Mummy"
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The Ancient Egyptians used a naturally-occurring salt from the banks of the Nile River, called natron, to mummify their dead.